Bring her with you. I always drag my old man along and he doesn't complain. If she can't stand the noise, the bus to Le Mans will provide her with plenty of shopping opportunities, not available in the UK - just hand over your credit card as you wave goodbye. One brownie point for every 100 euros she's allowed to spend. A slap up meal at les 7 plats in the old town will earn you a few more.